iRhythm Technologies, Inc. — Director's Dealing 2025

Feb 27, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: iRhythm Technologies, Inc. (IRTC)
CIK: 0001388658
Period of Report: 2025-02-25

Reporting Person: Blackford Quentin S. (Director, President and CEO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-02-25	Common Stock	A	40610	—	Acquired	200539	Direct
2025-02-26	Common Stock	A	38599	—	Acquired	239138	Direct
2025-02-26	Common Stock	S	22252	$112.13	Disposed	216886	Direct

Footnotes

F1: Represents the acquisition of shares upon the determination of the Compensation Committee of the Board of Directors of the Issuer that the performance conditions were met with respect to
performance Restricted Stock Units ("RSUs") granted to the Reporting Person on February 16, 2022.

F2: These securities are RSUs. Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. 25% of the RSUs vest on March 1, 2026 and each one-year anniversary thereafter, subject to the Reporting Person continuing as a service provider through each such date.

F3: These shares were sold to cover tax withholding and remittance obligations in connection with the vesting of performance RSUs.